/* ========================================
   RESPONSIVE BREAKPOINTS & MOBILE SPACING
   ======================================== */

/* ---------- TABLET: max 1024px ---------- */
@media (max-width: 1024px) {
  /* Header */
  .header-nav { display: none; }
  .mobile-menu-toggle { display: flex; }
  .header-action-label { display: none; }

  /* Hero */
  .hero-inner { gap: var(--space-6); }
  .hero-title { font-size: var(--text-4xl); }

  /* Grid reductions */
  .categories-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .products-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }

  /* Products layout */
  .products-layout { grid-template-columns: 1fr; gap: 24px; }
  .products-sidebar {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 320px;
    max-width: 85vw;
    height: 100vh;
    z-index: var(--z-modal);
    background: var(--color-surface);
    overflow-y: auto;
    box-shadow: 4px 0 20px rgba(0,0,0,0.15);
    padding: var(--space-5);
  }
  .products-sidebar.active {
    display: block;
  }
  .sidebar-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--space-5); }
  .sidebar-close { display: flex; }
  .mobile-filter-btn { display: inline-flex; margin-bottom: var(--space-4); }
  .mobile-filter-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: calc(var(--z-modal) - 1);
  }
  .mobile-filter-overlay.active { display: block; }

  /* Product detail */
  .product-detail-layout { gap: 32px; }

  /* Pages */
  .about-grid, .contact-grid, .quote-grid { grid-template-columns: 1fr; gap: var(--space-6); }
  .two-col-layout { grid-template-columns: 1fr; gap: var(--space-6); }
  .contact-layout, .quote-layout { grid-template-columns: 1fr; gap: 24px; }
  .activities-grid { grid-template-columns: 1fr; gap: 16px; }
  .trust-grid { grid-template-columns: 1fr; gap: 16px; }
  .benefit-list { grid-template-columns: 1fr; gap: 16px; }

  /* Footer */
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }

  /* Account */
  .account-dashboard { grid-template-columns: 1fr; gap: 24px; }

  .trust-section .trust-grid,
  .trust-bar-inner { flex-wrap: wrap; }
  .trust-section .trust-grid .trust-box { flex: 1 1 40%; min-width: 240px; }
  .export-teaser-content { text-align: left; }
}

/* ---------- MOBILE: max 768px ---------- */
@media (max-width: 768px) {
  .container {
    padding-left: 20px !important;
    padding-right: 20px !important;
    box-sizing: border-box;
  }

  .section {
    padding-top: 24px !important;
    padding-bottom: 32px !important;
  }

  .products-page {
    padding: 20px 0 !important;
  }

  /* Header */
  .topbar-inner {
    flex-wrap: wrap;
    gap: var(--space-2);
    justify-content: center;
  }
  .topbar-tagline {
    font-size: var(--text-xs);
    flex: 1 1 100%;
    text-align: center;
  }

  /* Hero */
  .hero { padding: var(--space-5) 0 !important; }
  .hero-inner { grid-template-columns: 1fr; gap: 20px; }
  .hero-title { font-size: var(--text-3xl); }
  .hero-image { order: -1; }
  .hero-image img { max-height: 240px; }
  .hero-actions { flex-direction: column; gap: 12px; }
  .hero-actions .btn { width: 100%; }

  /* Trust */
  .trust-bar-inner { grid-template-columns: 1fr 1fr; gap: var(--space-3); }
  .trust-item { flex-direction: column; text-align: center; gap: var(--space-2); }

  /* Products & Categories Grids */
  .categories-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .products-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .product-card-body { padding: 14px; gap: 8px; }
  .product-card-title { font-size: 14px; }
  .price-current { font-size: 16px; }

  .products-topbar {
    flex-wrap: wrap;
    gap: 12px;
    padding-bottom: 12px;
    margin-bottom: 16px;
  }

  /* Product Detail Page */
  .product-detail {
    padding: 16px 0 40px 0 !important;
  }
  .product-detail-layout {
    grid-template-columns: 1fr;
    gap: 24px;
    margin-bottom: 32px;
  }
  .product-title {
    font-size: 22px;
    line-height: 1.3;
  }
  .product-short-desc {
    font-size: 14px;
    padding-bottom: 16px;
  }
  .product-info {
    gap: 16px;
  }
  .product-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-top: 12px;
  }
  .product-actions .qty-control {
    flex-shrink: 0;
  }
  .product-actions .product-cta-btn {
    flex: 1;
    min-width: 180px;
    margin-top: 0;
  }

  /* Tabs on Mobile */
  .product-tabs {
    margin-top: 32px;
    padding-top: 24px;
  }
  .tab-buttons {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    white-space: nowrap;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
  }
  .tab-btn {
    margin-right: 0;
    padding: 8px 16px;
    font-size: 13px;
    border-radius: 4px;
    background-color: var(--color-surface-alt);
    border-bottom: 2px solid transparent;
  }
  .tab-btn.active {
    background-color: #e8f5e9;
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
  }
  .tab-content {
    padding-top: 20px;
  }
  .specs-table th, .specs-table td {
    padding: 10px 12px;
    font-size: 13px;
  }

  /* Supply / Export */
  .supply-inner, .export-teaser-inner { grid-template-columns: 1fr; gap: 20px; }
  .supply-image, .export-teaser-image { order: -1; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom-inner { flex-direction: column; gap: var(--space-4); text-align: center; }

  /* Breadcrumb */
  .breadcrumb { font-size: var(--text-xs); flex-wrap: wrap; gap: 4px 8px; margin-bottom: 16px; }

  /* Cart & Checkout */
  .cart-table th { display: none; }
  .cart-item { display: flex; flex-wrap: wrap; gap: var(--space-3); padding: var(--space-4); border-bottom: 1px solid var(--color-border); }
  .form-row { grid-template-columns: 1fr; gap: 12px; }
  .checkout-steps { flex-direction: column; gap: var(--space-3); }
}

/* ---------- SMALL MOBILE: max 576px ---------- */
@media (max-width: 576px) {
  .container {
    padding-left: 16px !important;
    padding-right: 16px !important;
  }

  .categories-grid { grid-template-columns: 1fr; gap: 16px; }
  .products-grid { grid-template-columns: 1fr; gap: 20px; }

  .product-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .product-actions .qty-control {
    width: 100%;
    justify-content: center;
  }
  .product-actions .product-cta-btn {
    width: 100%;
  }

  .hero-title { font-size: 22px; }
  .hero-subtitle { font-size: 14px; }
  .product-card-footer { flex-direction: column; gap: 10px; }
  .product-card-btn { width: 100%; }
}

/* Desktop Overrides */
@media (min-width: 1025px) {
  .mobile-menu-toggle { display: none; }
  .mobile-filter-btn { display: none; }
  .sidebar-header { display: none; }
  .sidebar-close { display: none; }
  .mobile-filter-overlay { display: none !important; }
}

.page-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}